JPH05508950A - 対数を推定する装置および方法 - Google Patents

対数を推定する装置および方法

Info

Publication number
JPH05508950A
JPH05508950A JP91511935A JP51193591A JPH05508950A JP H05508950 A JPH05508950 A JP H05508950A JP 91511935 A JP91511935 A JP 91511935A JP 51193591 A JP51193591 A JP 51193591A JP H05508950 A JPH05508950 A JP H05508950A
Authority
JP
Japan
Prior art keywords
value
logarithm
response
correction
error
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP91511935A
Other languages
English (en)
Japanese (ja)
Inventor
リンズレー，ブレット・ルイス
Original Assignee
モトローラ・インコーポレイテッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by モトローラ・インコーポレイテッド filed Critical モトローラ・インコーポレイテッド
Publication of JPH05508950A publication Critical patent/JPH05508950A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
    • G06F7/556—Logarithmic or exponential functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Complex Calculations (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
JP91511935A 1990-07-19 1991-06-17 対数を推定する装置および方法 Pending JPH05508950A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US55532190A 1990-07-19 1990-07-19
US555,321 1990-07-19
PCT/US1991/004308 WO1992001981A1 (en) 1990-07-19 1991-06-17 Device and method for evaluating logarithms

Publications (1)

Publication Number Publication Date
JPH05508950A true JPH05508950A (ja) 1993-12-09

Family

ID=24216824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP91511935A Pending JPH05508950A (ja) 1990-07-19 1991-06-17 対数を推定する装置および方法

Country Status (4)

Country Link
JP (1) JPH05508950A (ko)
KR (1) KR960003060B1 (ko)
CA (1) CA2085116A1 (ko)
WO (1) WO1992001981A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7284027B2 (en) 2000-05-15 2007-10-16 Qsigma, Inc. Method and apparatus for high speed calculation of non-linear functions and networks using non-linear function calculations for digital signal processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631230A (en) * 1970-09-24 1971-12-28 Ibm Binary arithmetic unit implementing a multiplicative steration for the exponential, logarithm, quotient and square root functions
DE2505388C2 (de) * 1975-02-08 1983-06-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur logarithmischen Umwandlung eines Meßwertes
US4089060A (en) * 1976-10-15 1978-05-09 Mitchell Donald K Digital logarithmic apparatus
US4291403A (en) * 1979-05-22 1981-09-22 Rockwell International Corporation Digital implementation of parity monitor and alarm
US4583180A (en) * 1983-01-28 1986-04-15 National Semiconductor Corporation Floating point/logarithmic conversion system
US4626825A (en) * 1985-07-02 1986-12-02 Vlsi Technology, Inc. Logarithmic conversion apparatus

Also Published As

Publication number Publication date
KR960003060B1 (en) 1996-03-04
CA2085116A1 (en) 1992-01-20
WO1992001981A1 (en) 1992-02-06

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